Two technical rounds The asked about the core internal working and process Topics commonly covered: • OOP concepts (Inheritance, Polymorphism, Abstraction, Encapsulation) • Java Collections (List, Set, Map, internal working) • Exception handling • Multithreading & Concurrency • Java 8+ features (Streams, Lambda, Optional) • JVM basics (Heap, Stack, GC) May include: • Simple coding problem • Code explanation or debugging